- GATE
- BAT
- Alembic Workbench
- Annotation Graph Toolkit
- ANVIL
- Brandeis Annotation Tool (BAT)
- Cornerstone
- Corte-e-costura (in Portuguese)
- Djangology
- JOS ToTaLe
- Jubilee
- MASKKOT
- NITE XML Toolkit
- Opinion Annotation Tool (OAT)
- Praat
- Prague Dependency Treebank Tools
- Sanchay
- SAPIENT
- Scheherazade
- TrEd
- TypeCraft
- @nnotate
